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Int Orthop 2022 May 20. Epub 2022 May 20.

Department of Orthopaedic Surgery, Mount Sinai Hospital, Toronto, ON, M5G 1X5, Canada.

Purpose: Treatment of symptomatic developmental dysplasia of the hip (DDH) requires a technically demanding total hip arthroplasty (THA) reconstruction. In patients with DDH, prostheses can be difficult to implant and often face the risk of fracture, mismatch, and loosening. The Wagner Cone Prosthesis™ is a tapered, conical stem which can improve treatment success in this population. Read More

Arthroplast Today 2022 Jun 10;15:153-158. Epub 2022 May 10.

Yale Department of Orthopaedics and Rehabilitation, New Haven, CT, USA.

Imageless computer-assisted navigation (CAN) excels in the post-traumatic arthritis and complex revision case setting when altered anatomy and landmarks are inaccurate references for cup positioning. We describe the case of an adult male patient who suffered an acetabular fracture which was treated nonoperatively. He subsequently developed post-traumatic arthritis and underwent an anterior approach total hip arthroplasty 25 years later. Read More

Rev Assoc Med Bras (1992) 2022 May;68(5):616-621

Istanbul University, Istanbul Faculty of Medicine, Department of Physical Medicine and Rehabilitation - Istanbul, Turkey.

Objective: This study aimed to investigate the effect of an adaptive seating system on pelvic obliquity and spinal coronal/sagittal balance in children with nonambulatory cerebral palsy and scoliosis.

Methods: This was a single-blind, prospective, randomized interventional study. Nonambulatory children aged 6-15 years with cerebral palsy and scoliosis were included. Read More

Orthop Surg 2022 May 18. Epub 2022 May 18.

Department of Orthopaedic Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.

Objective: To compare the surgical outcomes of debridement, antibiotics, and single-stage total hip replacement (DASR) vs two-stage arthroplasty (two-stage arthroplasty) for chronic destructive septic hip arthritis (SHA).

Methods: Cases of chronic destructive SHA treated by DASR or two-stage arthroplasty in our department from January 2008 to October 2021 were retrospectively reviewed. Patient demographic information, perioperative inflammation markers, intraoperative blood loss, microbial culture, and metagenomic new generation sequencing results were recorded. Read More

World J Orthop 2022 Apr 18;13(4):388-399. Epub 2022 Apr 18.

Department of Orthopedic Trauma, SS Annunziata Hospital, Savigliano 12038, Italy.

Background: The direct anterior approach for total hip arthroplasty (DAA-THA) is increasing in popularity due to some advantages such as less surgical trauma, minimal dissection of soft tissues, shorter rehabilitation times, faster return to daily activities, lower incidence of dislocation. On the other hand, the literature reports a high rate of intraoperative complications, with many different rates and complication types in the published papers.

Aim: To analyze our complications comparing results with the literature; to report measures that we have taken to reduce complications rate. Read More

J Orthop Surg Res 2022 May 16;17(1):278. Epub 2022 May 16.

Department of Orthopedic Surgery, Ajou University School of Medicine, Yeongtong-gu, Suwon-si, Gyeonggi-do, Republic of Korea.

Background: The study aim was to report the treatment outcomes of trochanteric flip osteotomy (TFO) with surgical hip dislocation (SHD) for femoral head fracture and dislocation (FHFD) and to investigate the risk factors for avascular necrosis (AVN) of the femoral head.

Methods: The data of 34 patients (29 men, 5 women; mean age 37.9 years) diagnosed with FHFD and treated with TFO with SHD between May 2009 and February 2018 with an average follow-up period of 5. Read More

Ann Transl Med 2022 Apr;10(8):495

Department of Orthopedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Stickler syndrome is a multisystem connective tissue disorder caused by mutations in collagen genes that can present with craniofacial, ocular, audial, or skeletal abnormalities. Here, we report on a male patient with a missense mutation (c.647G>A; p. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2022 May;36(5):548-554

Department of Orthopedics, Beijing Jishuitan Hospital (Fourth Clinical College of Peking University), Beijing, 100035, P. R. China.

Objective: To assess the midterm follow-up outcomes of total hip arthroplasty (THA) for the treatment of patients with juvenile-onset ankylosing spondylitis (JAS).

Methods: The clinical data of 81 patients (127 hips) with JAS (age≤16 years, JAS group) and 267 patients (391 hips) with adult onset ankylosing spondylitis (AAS) (age>16 years, AAS group) between January 2004 and March 2018 were retrospectively analysed. The baseline demographics, clinical, radiographic, and laboratory parameters were collected. Read More

BMC Musculoskelet Disord 2022 May 14;23(1):455. Epub 2022 May 14.

Department of Radiology, Shengjing Hospital of China Medical University, Shenyang, China.

Background: Based on the Digital Imaging and Communications in Medicine (DICOM) data of three-dimensional magnetic resonance imaging (3D-MRI), finite element models of the hip joints of children with developmental dysplasia of the hip were established. The primary objectives included simulation and analysis of the finite element model pre- and post-closed reduction under different stances and loads, and evaluation of the size and distribution of von Mises stress in the acetabulum and femoral head pre- and post-operation and the short-term effects.

Methods: Acetabular index measurements of both the unaffected and affected sides were conducted, alongside International Hip Dysplasia Institute (IHDI) classification of the affected hip. Read More

Eur J Med Genet 2022 May 11;65(6):104521. Epub 2022 May 11.

Department of Medical Genetics, Antwerp University Hospital and University of Antwerp, Antwerp, Belgium; Current affiliation: Center for Human Genetics, University Hospitals Leuven and KU Leuven, Leuven, Belgium. Electronic address:

Steel syndrome (MIM# 615155) is an autosomal recessive skeletal disorder, characterized by dislocations of the hips and radial heads, carpal coalition, short stature, facial dysmorphism, and scoliosis. Until date 47 patients have been reported. However, disease causing variants have been identified only in twenty Puerto Rican and nine non-Puerto Rican families. Read More

J Clin Anesth 2022 May 9:110835. Epub 2022 May 9.

Department of Anesthesiology, Showa University Hospital, Tokyo, Japan.

Arthroscopy 2022 May 9. Epub 2022 May 9.

Hospital for Special Surgery, New York, NY; Hospital for Special Surgery Sports Medicine Institute, New York, NY.

Hip-spine syndrome refers to concurrent hip and spine pathology with overlapping symptoms. Most of the literature has studied it in relation to total hip arthroplasty (THA) literature and has been shown to increase dislocation risk. Lumbar spine and pelvic mobility have been less frequently studied in relation to non-arthritic pathologic hip states. Read More

Cartilage 2022 Apr-Jun;13(2):19476035221098165

Department of Orthopedic Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.

Objective: Developmental dysplasia of the hip (DDH) is the most common skeletal development in children and could result in secondary osteoarthritis. This study aims to clarify the alternations of subchondral trabecular bone remodeling and microstructural properties during the development of DDH, and the potential influence of these alternations on the overlying cartilage degeneration and DDH progression.

Design: Traditional straight-leg swaddling method was adopted to establish DDH model in newborn Sprague Dawley rats. Read More

Bone Jt Open 2022 May;3(5):423-431

Department of Trauma and Orthopaedic Surgery, Wrightington Hospital, Wigan, UK.

Aims: The aim of this modified Delphi process was to create a structured Revision Hip Complexity Classification (RHCC) which can be used as a tool to help direct multidisciplinary team (MDT) discussions of complex cases in local or regional revision networks.

Methods: The RHCC was developed with the help of a steering group and an invitation through the British Hip Society (BHS) to members to apply, forming an expert panel of 35. We ran a mixed-method modified Delphi process (three rounds of questionnaires and one virtual meeting). Read More

Orthop J Sports Med 2022 May 5;10(5):23259671221088009. Epub 2022 May 5.

Department of Orthopaedics and Rehabilitation, Yale University School of Medicine, New Haven, Connecticut, USA.

Background: Traumatic hip dislocations are rare injuries that most commonly occur in motor vehicle accidents. There is a paucity of literature that describes sports-related hip dislocations.

Purpose: To estimate the incidence of sports-related hip dislocations and determine any sport- or sex-related epidemiological trends using the National Electronic Injury Surveillance System (NEISS) database. Read More

Cureus 2022 Apr 9;14(4):e23977. Epub 2022 Apr 9.

Department of Orthopedic Surgery, Larkin Community Hospital, Miami, USA.

Heterotopic ossification (HO) is the formation of bone within extraskeletal soft tissue. The development of mature lamellar bone within soft tissues can be acquired in cases like trauma. Clinical manifestations of HO primarily include pain at the site of the extraskeletal ossification and limited range of motion or function when it involves a joint. Read More

BMC Musculoskelet Disord 2022 May 11;23(1):437. Epub 2022 May 11.

Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China.

Background: Mechanical failure, power shortage, and inadvertent contamination of the oscillating saw occasionally occurs in actualizing femoral neck osteotomy during total hip arthroplasty (THA); however, no appropriate alternative solution is currently available. This study aimed to introduce a novel osteotomy instrumentation (fretsaw, jig, cable passer hook) as a substitute tool while the oscillating saw was unavailable during THA.

Methods: This study included 40 patients (40 hips) who underwent femoral neck osteotomy during primary THA using the new osteotomy instrumentation (n = 20) and the oscillating saw (n = 20). Read More

J Orthop Traumatol 2022 May 10;23(1):24. Epub 2022 May 10.

Orthopedic and Traumatology Department, Faculty of Medicine, Sohag University, Sohag, Egypt.

Introduction: Posterior hip dislocation is the commonest type of hip dislocation. It is associated with femoral head fracture in 7% of cases. Urgent and congruent hip reduction is mandatory to improve clinical outcomes and avoid irreversible complications. Read More

Arch Orthop Trauma Surg 2022 May 10. Epub 2022 May 10.

NYU Langone Health, Division of Adult Reconstruction, Department of Orthopedic Surgery, Hospital of Joint Diseases, NYU Langone Orthopedic Hospital, 301 East 17th Street, New York, NY, 10003, USA.

Background: The knee-hip-spine syndrome has been well elucidated in the literature in recent years. The aim of this study was to evaluate the effect of total knee arthroplasty (TKA) on spinopelvic sagittal alignment in patients with and without pre-TKA lumber spinal fusion.

Methods: This is a retrospective cohort study of 113 patients who underwent TKA for primary osteoarthritis. Read More

Zhongguo Gu Shang 2022 May;35(5):460-3

Department of Orthopaedics, Xijing Hospital of Air Force Military Medical University, Xi'an 710000, Shaanxi, China.

Objective: To explore the incidence and risk factors of readmission of elderly patients with hip fracture after hip hemiarthroplasty.

Methods: A retrospective analysis of 237 elderly hip fracture patients who underwent hip hemiarthroplasty from February 2015 to October 2020 were performed. According to the readmission status of the patients at 3 months postoperatively, the patients were divided into readmission group (39 cases)and non-readmission group(198 cases). Read More

World Wide Web 2022 May 4:1-21. Epub 2022 May 4.

School of Information Science and Technology, University of Science and Technology of China, Jinzhai Road, Hefei, 230026 Anhui China.

Developmental dysplasia of the hip (DDH) is one of the most common diseases in children. Due to the experience-requiring medical image analysis work, online automatic diagnosis of DDH has intrigued the researchers. Traditional implementation of online diagnosis faces challenges with reliability and interpretability. Read More

Int Orthop 2022 May 7. Epub 2022 May 7.

Department of Orthopaedics and Sports Orthopaedics, School of Medicine, Klinikum Rechts Der Isar, Technical University of Munich, Ismaninger Str. 22, 81675, Munich, Germany.

Purpose: Diagnosing periprosthetic joint infections (PJI) are challenging and may be hampered by the presence of other causes of local inflammation. Conventional synovial and serum markers are not reliable under these circumstances. Synovial calprotectin has been recently shown as a promising biomarker for PJI in total hip (THA) and total knee arthroplasty (TKA). Read More

Arch Orthop Trauma Surg 2022 May 6. Epub 2022 May 6.

Department of Orthopaedic Surgery, Yokohama City University, Yokohama, Japan.

Introduction: Although several surgical approaches, with or without capsular repair, can be used during total hip arthroplasty (THA), there is no clear evidence that capsular repair provides a clinical advantage post-surgery, regardless of surgical approach. This systematic review and meta-analysis evaluated whether capsular repair using various surgical approaches provides a clinical advantage over capsular resection post-THA.

Methods: This study was conducted in accordance with the preferred reporting items for systematic reviews and meta-analyses (PRISMA) 2020 checklist for systematic reviews and meta-analyses. Read More

J Clin Orthop Trauma 2022 Jun 22;29:101876. Epub 2022 Apr 22.

Department of Orthopaedics, All India Institute of Medical Sciences, Rishikesh, India.

Purpose: The neck of femur fractures in the elderly is a global concern. These fractures impair the quality of living and add to morbidity and mortality. A Multitude of treatment options for the same. Read More

J Clin Orthop Trauma 2022 Jun 22;29:101877. Epub 2022 Apr 22.

Department of Orthopaedics, All India Institute of Medical Sciences (AIIMS), New Delhi, 110029, India.

Total hip arthroplasty (THA) has been described as the operation of the century. Despite significant advancement in the field of technology, hip instability remains second most common cause of revision hip surgery after infection. There is garning interest to identify role of hip-spine relationship in order to identify high-risk patients for instability after THA. Read More

Arch Bone Jt Surg 2022 Mar;10(3):278-285

Orthopaedic and Traumatology Department, Assiut University Hospital, Assiut, Egypt.

Background: Dislocation after total hip arthroplasty (THA) partly under the surgeon's control, by appropriate placement of the components. We aimed in this study to determine the accuracy of using intra-operative smartphone applications (Apps) to place the acetabular cup within the safe abduction angle by less experienced surgeons during THA surgery when compared to the conventional freehand technique for cup placement.

Methods: Sixty primary THAs were performed, 30 using the conventional freehand technique (control group) and 30 using the smartphone app technique (study group) to determine the acetabular cup abduction angle by the same young surgeon with less than one year of experience. Read More

J Knee Surg 2022 May 5. Epub 2022 May 5.

Department of Joint Surgery, Hebei Medical University Affiliated Third Hospital, Shijiazhuang, Hebei, China.

The purpose was to investigate morphological changes of the hip joint in patients with recurrent dislocation of the patella combined with trochlear dysplasia. There was a retrospective analysis of 148 patients and 150 control subjects. The selection of participants was randomized. Read More

Arthroplast Today 2022 Jun 25;15:102-107. Epub 2022 Apr 25.

Department of Orthopaedic Surgery, Vanderbilt University Medical Center, Nashville, TN, USA.

Background: Prosthetic hip dislocation remains one of the most frequent complications following total hip replacement. Dislocations are predominantly managed by a closed reduction in the emergency department (ED) or the operating room (OR). This study aimed to evaluate how the location of an initial closed reduction attempt impacts a patient's course of care including length of stay (LOS) and cost of care. Read More

Arch Orthop Trauma Surg 2022 May 4. Epub 2022 May 4.

Center for Musculoskeletal Surgery, Department of Orthopaedic Surgery, Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.

Background: A preoperative pathogen detection is considered a prerequisite before undergoing one-stage exchange for prosthetic joint infection (PJI) according to most guidelines. This study compares patients with and without preoperative pathogen detection undergoing one-stage exchange for PJI of the hip. The authors put up the hypothesis that a preoperative pathogen detection is no prerequisite in selected cases undergoing one-stage exchange. Read More

Hip Int 2022 May 3:11207000221094513. Epub 2022 May 3.

Department of Orthopaedic Surgery, University Hospital Policlinico di Modena, University of Modena and Reggio-Emilia, Modena, Italy.

Aims: Dislocation is a major cause of early failure after THA and is highly influenced by surgical approach and component positioning. Robotic-arm assisted arthroplasty has been developed in an attempt to improve component positioning and reduce postoperative complications.The purpose of this study was to compare the rate of dislocation after robotic total hip arthroplasty through 3 different surgical approaches. Read More